Lindab Magestic Galvanised Steel Rectangular Gutter 3m 140mm

Choose strength, capacity and clean architectural lines with the Lindab Magestic Galvanised Steel Rectangular Gutter, 140 mm (3 m). Formed from 0.6 mm steel with a roll-formed, bead-stiffened front edge, this box profile resists twist and sag on longer elevations while moving serious roof water with ease. Supplied in straight 3 m lengths for faster installs and fewer joints, it connects using either the RTSK mechanical gutter joint or the traditional roll-joint method—ideal for new builds and quality refurbishments alike. As part of Lindab’s Magestic range, the galvanised coating is enhanced with magnesium to stabilise the surface and protect zinc’s naturally porous structure, delivering outstanding resistance to red rust and white staining with minimal upkeep, even on exposed or coastal sites. Unpainted metal settles to an elegant dark-grey patina within a few years and pairs well with both brick and contemporary cladding. Match with rectangular brackets, outlets and steel downpipes for a durable, recyclable system built for UK weather.

Technical Specification

• Assembly Video
• PDFs: Assembly Instructions | Technical Details
• Brand: Lindab
• Range: Magestic (Rectangular)
• Product Type: Rectangular Steel Gutter
• Model/SKU: RTRA3140
• Finish/Colour: Magestic Galvanised (unpainted)
• Material: 0.6 mm galvanised steel with zinc–magnesium (Magestic) corrosion protection
• Dimensions: Length 3000 mm; size 140 mm (rectangular box profile)
• Front Edge: Bead-stiffened, roll-formed for added rigidity
• Joining Methods: RTSK gutter joint or roll-joint method
• Key Features: High corrosion resistance; reduced coastal corrosion; self-healing sacrificial action on cuts; recyclable steel; low environmental impact; ages to dark-grey patina in 3–5 years
• Warranty: 10 Year
• Manufacturer: Lindab